JPH0585597U - Perforator - Google Patents

Perforator

Info

Publication number
JPH0585597U
JPH0585597U JP2743192U JP2743192U JPH0585597U JP H0585597 U JPH0585597 U JP H0585597U JP 2743192 U JP2743192 U JP 2743192U JP 2743192 U JP2743192 U JP 2743192U JP H0585597 U JPH0585597 U JP H0585597U
Authority
JP
Japan
Prior art keywords
output shaft
punching machine
tip tool
washer
flange portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2743192U
Other languages
Japanese (ja)
Other versions
JP2606473Y2 (en
Inventor
裕幸 尾田
和実 武石
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koki Holdings Co Ltd
Original Assignee
Hitachi Koki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Koki Co Ltd filed Critical Hitachi Koki Co Ltd
Priority to JP1992027431U priority Critical patent/JP2606473Y2/en
Publication of JPH0585597U publication Critical patent/JPH0585597U/en
Application granted granted Critical
Publication of JP2606473Y2 publication Critical patent/JP2606473Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Gripping On Spindles (AREA)
  • Drilling And Boring (AREA)
  • Drilling Tools (AREA)

Abstract

(57)【要約】 【目的】 小型で軽く、構造も単純で廉価を可能とす
る。 【構成】 その先端側に先端工具9を同心状に取付ける
ねじ部10およびフランジ部11を有する出力軸12を
備え、出力軸12には先端工具9がロックした場合に出
力軸12への衝撃を緩和する衝撃緩和手段が設けられて
いる穿孔機の衝撃緩和手段が、フランジ部11の端面と
先端工具9との間に設けられ、かつ変形自在な部材例え
ばワッシャ16で形成されたものであることを特徴とす
る。 【効果】 変形自在な部材例えばワッシャで衝撃が緩和
されるようになって、従来のようにスリップクラッチ装
置を設けなくてもよくなる。
(57) [Abstract] [Purpose] Compact and lightweight, simple structure and low cost. An output shaft 12 having a screw portion 10 and a flange portion 11 for concentrically mounting the tip tool 9 is provided on the tip side thereof, and the output shaft 12 is provided with a shock to the output shaft 12 when the tip tool 9 is locked. The impact absorbing means of the punching machine provided with the impact absorbing means for alleviating is provided between the end surface of the flange portion 11 and the tip tool 9 and is formed by a deformable member such as a washer 16. Is characterized by. [Effect] Since the impact is moderated by the deformable member such as the washer, it is not necessary to provide the slip clutch device unlike the conventional case.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、穿孔機に関するものである。 The present invention relates to a punching machine.

【0002】[0002]

【従来の技術】[Prior Art]

図7には穿孔機の従来例が示されている。同図に示されているようにドリル本 体1はポール2に上下に摺動自在に取付けられ、ポール2に設けられたラック3 に噛み合うピニオン付きハンドル4を回すことにより、上下動する。ラック3は ベース5に固定され、穿孔時はベース5を被削材にアンカーで固定する。ドリル 本体1はモートル6を収納するハウジング7と、減速部、出力軸を収納するギヤ カバ8とを備えている。 FIG. 7 shows a conventional example of a punching machine. As shown in the figure, the drill body 1 is vertically slidably mounted on a pole 2 and is vertically moved by turning a handle 4 with a pinion that meshes with a rack 3 provided on the pole 2. The rack 3 is fixed to the base 5, and at the time of punching, the base 5 is fixed to the work material with an anchor. The drill main body 1 is provided with a housing 7 that houses the motor 6, and a gear cover 8 that houses the speed reduction unit and the output shaft.

【0003】 ところで従来の穿孔機では穿孔中に先端工具の刃先がコンクリート内の鉄筋に 当たり、急激に出力軸がロックした場合、穿孔機の動力伝達機構であるギアおよ びピニオン等に加わる衝撃力を緩和するため、スリップクラッチ装置を内蔵させ ていた。By the way, in the conventional drilling machine, when the cutting edge of the tip tool hits the reinforcing bar in the concrete during drilling and the output shaft is suddenly locked, the impact applied to the gear and pinion which are the power transmission mechanism of the drilling machine. A slip clutch device was built in to relieve the force.

【0004】[0004]

【考案が解決しようとする課題】[Problems to be solved by the device]

上記従来のスリップクラッチ装置を内蔵する穿孔機は、スリップクラッチ装置 を内蔵しているので体格が大きくなり、重量も重く、構造が複雑になり価格の高 いものであった。またスリップトルクの調整のためメンテナンスが難かしかった 。 Since the conventional punching machine incorporating the slip clutch device has the slip clutch device incorporated therein, it has a large size, a heavy weight, a complicated structure, and is expensive. Also, maintenance was difficult due to the adjustment of slip torque.

【0005】 本考案は以上の点に鑑みなされたものであり、小型で軽く、構造も単純で廉価 を可能とした穿孔機を提供することを目的とするものである。The present invention has been made in view of the above points, and an object of the present invention is to provide a punching machine which is small and lightweight, has a simple structure, and is inexpensive.

【0006】[0006]

【課題を解決するための手段】[Means for Solving the Problems]

上記目的は、衝撃緩和手段を、フランジ部の端面と先端工具との間に設けられ 、かつ変形自在な部材で形成することにより、達成される。 The above object is achieved by forming the shock absorbing means by a deformable member that is provided between the end surface of the flange portion and the tip tool.

【0007】[0007]

【作用】[Action]

上記手段を設けたので、変形自在な部材で衝撃が緩和されるようになって、従 来のようにスリップクラッチ装置を設けなくてもよくなる。 Since the above-mentioned means is provided, the impact is mitigated by the deformable member, and it is not necessary to provide the slip clutch device as in the conventional case.

【0008】[0008]

【実施例】【Example】

次に本考案を実施例により具体的に説明する。 Next, the present invention will be specifically described with reference to examples.

【0009】 図1および図2には本考案の一実施例が示されている。なお、従来と同じ部品 には同じ符号を付したので説明を省略する。その先端側に先端工具のダイヤモン ドコアビット9を同心状に取付けるねじ部10およびフランジ部11を有する出 力軸12を備え、出力軸12にはダイヤモンドコアビット9がロックした場合に 出力軸12への衝撃を緩和する衝撃緩和手段が設けられている穿孔機において、 本実施例では衝撃緩和手段を、フランジ部11の端面とダイヤモンドコアビット 9との間に設けられ、かつ変形自在な部材で形成した。このようにすることによ り、変形自在な部材で衝撃が緩和されるようになって、従来のようにスリップク ラッチ装置を設けなくてもよくなり、小型で軽く、構造も単純で廉価を可能とし た穿孔機を得ることができる。1 and 2 show an embodiment of the present invention. Since the same parts as those in the conventional art are designated by the same reference numerals, the description thereof will be omitted. An output shaft 12 having a screw portion 10 and a flange portion 11 for concentrically attaching the diamond core bit 9 of the tip tool is provided on the tip side thereof, and the output shaft 12 is impacted to the output shaft 12 when the diamond core bit 9 is locked. In the punching machine provided with the shock absorbing means for relaxing the shock absorbing means, in this embodiment, the shock absorbing means is provided between the end surface of the flange portion 11 and the diamond core bit 9 and is formed of a deformable member. By doing so, the impact is mitigated by the deformable member, and it is not necessary to provide a slip clutch device as in the past, and it is small and lightweight, and the structure is simple and inexpensive. You can get the punching machine.

【0010】 すなわちモートルに連結されたピニオン13は2段階にギヤ14で減速され、 出力軸12を回転させる。出力軸12はボールベアリング15で支持され、先端 部はダイヤモンドコアビット9を取付けるフランジ部11とねじ部10が形成さ れている。フランジ部11の端面には変形自在な部材例えばワッシャ16が、ダ イヤモンドコアビット9を取外しても脱落しないように0リング17で止められ ている。That is, the pinion 13 connected to the motor is decelerated by the gear 14 in two steps to rotate the output shaft 12. The output shaft 12 is supported by a ball bearing 15, and a flange portion 11 for mounting the diamond core bit 9 and a screw portion 10 are formed at the tip portion. A deformable member such as a washer 16 is fixed to the end surface of the flange portion 11 by an O-ring 17 so as not to drop even if the diamond core bit 9 is removed.

【0011】 先端工具のダイヤモンドコアビット9は出力軸12の先端のねじ部10に取付 けられ、ワッシャ16は出力軸12のフランジ部11との間にはさみ込まれる。 先端ねじ部10は右ねじとなっており、出力軸12の回転も右回転であるから穿 孔中は締付力が増す方向に負荷がかかる構造となっている。The diamond core bit 9 of the tip tool is attached to the thread portion 10 at the tip of the output shaft 12, and the washer 16 is sandwiched between the washer 16 and the flange portion 11 of the output shaft 12. The tip threaded portion 10 is a right-handed screw, and the output shaft 12 is also rotated to the right. Therefore, a load is applied in the direction of increasing the tightening force during drilling.

【0012】 穿孔中にダイヤモンドコアビット9の刃先がコンクリート内の鉄筋に当たり急 激に出力軸12がブロックした場合、衝撃的に増加する締付力をワッシャ16が 弾性変形または塑性変形することにより、出力軸12への締付力の伝達を抑制し 、ギヤ14、ピニオン13に加わる衝撃を緩和できる。When the cutting edge of the diamond core bit 9 hits the reinforcing bar in the concrete during drilling and the output shaft 12 is suddenly blocked, the washer 16 elastically or plastically deforms the tightening force that shocks and outputs. It is possible to suppress the transmission of the tightening force to the shaft 12 and reduce the impact applied to the gear 14 and the pinion 13.

【0013】 このように本実施例によればスリップクラッチ装置を具備せず、出力軸のフラ ンジ部に組み込んだ変形自在な部材例えばワッシャの変形によってダイヤモンド コアビットに作用する衝撃荷重が直接出力軸に伝わるのを緩和することができる ので、穿孔機を小型、軽量、廉価なものにすることができる。As described above, according to the present embodiment, the slip clutch device is not provided, and the deformable member incorporated in the flange portion of the output shaft, for example, the washer is deformed so that the impact load acting on the diamond core bit is directly applied to the output shaft. Since the transmission can be reduced, the punching machine can be made small, lightweight and inexpensive.

【0014】 図3には本考案の他の実施例が示されている。本実施例では衝撃緩和手段を、 ワッシャ16と、出力軸12の外周部に設けられ、かつワッシャ16の変形を吸 収する溝部18とを持って形成した。このようにすることより、ワッシャ16の 変形がしやすくなって、前述の場合よりも出力軸12への衝撃が緩和できる。FIG. 3 shows another embodiment of the present invention. In this embodiment, the shock absorbing means is formed by having the washer 16 and the groove portion 18 provided on the outer peripheral portion of the output shaft 12 and absorbing the deformation of the washer 16. By doing so, the washer 16 is easily deformed, and the impact on the output shaft 12 can be alleviated more than in the case described above.

【0015】 すなわち出力軸12が急激にロックした場合、半径方向に変形しようとするワ ッシャ16は、このワッシャ16の係合部外周に設けられた溝部18によって、 ワッシャ16の変形許容範囲が広められ、変形が促進される。That is, when the output shaft 12 is suddenly locked, the washer 16 that is about to be deformed in the radial direction has a wider allowable deformation range of the washer 16 due to the groove portion 18 provided on the outer periphery of the engaging portion of the washer 16. Deformation is promoted.

【0016】 図4および図5には本考案の更に他の実施例が示されている。本実施例では衝 撃緩和手段を、出力軸12の先端工具9側のフランジ部11aにフランジ部11 aと一体に形成され、かつ衝撃ロックトルク(22〜40kg・m)で変形する つば状部材19で形成した。このようにすることにより、衝撃ロックトルクを受 けた場合につば状部材19が変形して衝撃を緩和するようになって、衝撃ロック トルクを受けた場合の衝撃を緩和することができる。因みにこのつば状部材19 は実用トルク(1〜8kg・m)では変形しない。4 and 5 show another embodiment of the present invention. In the present embodiment, the impact absorbing means is formed on the flange portion 11a of the output shaft 12 on the tip tool 9 side integrally with the flange portion 11a, and is deformed by the impact lock torque (22 to 40 kg · m). Formed at 19. By doing so, when the impact lock torque is received, the collar-shaped member 19 is deformed to absorb the impact, and the impact when the impact lock torque is received can be alleviated. Incidentally, the collar-shaped member 19 does not deform under the practical torque (1 to 8 kg · m).

【0017】 すなわち穿孔中にコアビット9が衝撃ロックトルクを受けて急激にロックした 場合、このつば状部材19には大きな推力が作用し、外縁が弾性変形することに より、ギヤ14、ピニオン13に作用する衝撃荷重を緩和する。That is, when the core bit 9 receives an impact lock torque and suddenly locks during drilling, a large thrust acts on the collar-shaped member 19 and the outer edge is elastically deformed, so that the gear 14 and the pinion 13 are deformed. The impact load acting is relaxed.

【0018】 図6には本考案の更に他の実施例が示されている。本実施例ではつば状部材1 9を、先端工具9aのフランジ部11側端部に先端工具9aと一体に形成した。 この場合も前述の場合と同様な作用効果を奏することができる。FIG. 6 shows still another embodiment of the present invention. In this embodiment, the brim-shaped member 19 is formed integrally with the tip tool 9a at the end of the tip tool 9a on the flange portion 11 side. In this case as well, it is possible to obtain the same effects as the above case.

【0019】[0019]

【考案の効果】[Effect of the device]

上述のように本考案は衝撃緩和手段を、フランジ部の端面と先端工具との間に 設けられ、かつ変形自在な部材で形成したので、変形自在な部材で衝撃が緩和さ れるようになって、従来のようにスリップクラッチ装置を設けなくてもよくなり 、小型で軽く、構造も単純で廉価を可能とした穿孔機を得ることができる。 As described above, in the present invention, the shock absorbing means is provided between the end face of the flange portion and the tip tool and is formed of a deformable member, so that the shock can be absorbed by the deformable member. It is not necessary to provide a slip clutch device as in the conventional case, and it is possible to obtain a small-sized and light-weight perforator having a simple structure and low cost.

【図面の簡単な説明】[Brief description of drawings]

【図1】 本考案の穿孔機の一実施例の縦断側面図であ
る。
FIG. 1 is a vertical sectional side view of an embodiment of a punching machine of the present invention.

【図2】 図1の先端工具取付部の拡大図である。FIG. 2 is an enlarged view of a tip tool attachment portion of FIG.

【図3】 本考案の穿孔機の他の実施例の先端工具取付
部の拡大図である。
FIG. 3 is an enlarged view of a tip tool mounting portion of another embodiment of the punching machine of the present invention.

【図4】 本考案の穿孔機の更に他の実施例の縦断側面
図である。
FIG. 4 is a vertical sectional side view of still another embodiment of the punching machine of the present invention.

【図5】 図4の先端工具取付部の拡大図である。5 is an enlarged view of the tip tool attachment portion of FIG. 4. FIG.

【図6】 本考案の穿孔機の更に他の実施例の先端工具
取付部の拡大図である。
FIG. 6 is an enlarged view of a tip tool mounting portion of a punching machine according to another embodiment of the present invention.

【図7】 従来の穿孔機の斜視図である。FIG. 7 is a perspective view of a conventional punching machine.

【符号の説明】[Explanation of symbols]

9、9は先端工具(ダイヤモンドコアビット)、10は
ねじ部、11、11aはフランジ部、12は出力軸、1
6はワッシャ、18は溝部、19つば状部材である。
9 and 9 are tip tools (diamond core bits), 10 are screw parts, 11 and 11a are flange parts, 12 is an output shaft, 1
6 is a washer, 18 is a groove, and 19 is a brim-shaped member.

Claims (5)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 その先端側に先端工具を同心状に取付け
るねじ部およびフランジ部を有する出力軸を備え、前記
出力軸には前記先端工具がロックした場合に前記出力軸
への衝撃を緩和する衝撃緩和手段が設けられている穿孔
機において、前記衝撃緩和手段が、前記フランジ部の端
面と前記先端工具との間に設けられ、かつ変形自在な部
材で形成されたものであることを特徴とする穿孔機。
1. An output shaft having a screw portion and a flange portion for concentrically mounting a tip tool on its tip side is provided, and when the tip tool is locked, the output shaft absorbs a shock to the output shaft. In the punching machine provided with impact absorbing means, the impact absorbing means is provided between the end surface of the flange portion and the tip tool and is formed of a deformable member, Punching machine.
【請求項2】 前記変形自在な部材が、ワッシャである
請求項1記載の穿孔機。
2. The punching machine according to claim 1, wherein the deformable member is a washer.
【請求項3】 前記衝撃緩和手段が、前記ワッシャと、
前記出力軸の外周部に設けられ、かつ前記ワッシャの変
形を吸収する溝部とを持って形成されたものである請求
項1または請求項2記載の穿孔機。
3. The shock absorbing means includes the washer,
The punching machine according to claim 1 or 2, wherein the punching machine is provided on an outer peripheral portion of the output shaft and has a groove portion that absorbs deformation of the washer.
【請求項4】 前記変形自在な部材が、前記出力軸の前
記先端工具側のフランジ部にフランジ部と一体に形成さ
れ、かつ衝撃ロックトルクで変形するつば状部材で形成
されたものである請求項1記載の穿孔機。
4. The deformable member is a flange-shaped member that is integrally formed with the flange portion of the output shaft on the tip tool side and that is deformed by impact lock torque. The punching machine according to Item 1.
【請求項5】 前記つば状部材が、前記先端工具の前記
フランジ部側端部に先端工具と一体に形成されたもので
ある請求項4記載の穿孔機。
5. The punching machine according to claim 4, wherein the collar-shaped member is formed integrally with the tip tool at an end of the tip tool on the side of the flange portion.
JP1992027431U 1992-04-24 1992-04-24 Drilling machine Expired - Lifetime JP2606473Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1992027431U JP2606473Y2 (en) 1992-04-24 1992-04-24 Drilling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1992027431U JP2606473Y2 (en) 1992-04-24 1992-04-24 Drilling machine

Publications (2)

Publication Number Publication Date
JPH0585597U true JPH0585597U (en) 1993-11-19
JP2606473Y2 JP2606473Y2 (en) 2000-11-06

Family

ID=12220923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1992027431U Expired - Lifetime JP2606473Y2 (en) 1992-04-24 1992-04-24 Drilling machine

Country Status (1)

Country Link
JP (1) JP2606473Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022103981A1 (en) * 2020-11-13 2022-05-19 Milwaukee Electric Tool Corporation Core drill assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61201710U (en) * 1985-06-07 1986-12-18
JPH0349883A (en) * 1989-07-15 1991-03-04 Matsushita Electric Works Ltd Rotary tool

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61201710U (en) * 1985-06-07 1986-12-18
JPH0349883A (en) * 1989-07-15 1991-03-04 Matsushita Electric Works Ltd Rotary tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022103981A1 (en) * 2020-11-13 2022-05-19 Milwaukee Electric Tool Corporation Core drill assembly
US11982184B2 (en) 2020-11-13 2024-05-14 Milwaukee Electric Tool Corporation Core drill assembly

Also Published As

Publication number Publication date
JP2606473Y2 (en) 2000-11-06

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